Duster and machine for making the same



7 Sheets-Sheet l R. YUTTS DUSTER AND MACHINE FOR MAKING THE SAME Filed Nov. l2, 1931 Feb. 7, 1933.

Feb.. 7, 1933. R. YUTTs DUSTER AND MACHINE FOR MAKING THE SAME Filed Nov. 12, lsasll` 7 sheets-sheet Feb. 7, 1933. R. YUTTS DUSTER AND MACHINE FOR MAKING THE SAME Filed Nov. 12, 1931 7 sheets-sheet Feb. 7, 1933. R. YuTTs DUSTER AND MACHINE FOR MAKING THE SAME Filed Nov. 12, 1931 '7 Sheets-Sheet l Feb. 7, 1933. R, YUTTs DUsTER AND MACHINE FOR MAKING THE SAME Filed Nov. 12, 1951 7 Sheets-Sheet 5 Feb. 7, 1933. R. Yu'r'rs DUSTER AND MACHINE FOR MAKING THE SAME Filed Nov. 12, 1951 7 sheets-sheet e gwwno@ w1 1 Ms* I Feb. 7, 1933. R. YUTTS DUSTER NDI MACHINE FOR MAKING THE SAME Filed Nov. l2, 1931 '7 Sheets-Sheet 7 kPatented Feb. 7, 1933 i UNITED STATES" RALPH YU'nTsoF MIAMI, LORIDA Y jnus'rnn 'ANDAMACHINE For, `mammie THE Y Application ined November 12,1931. many Nb'. 574,665.

l5 `Al'second important object of the invention is to provide any improved machine lfor this fpurpose wherein twodustersfare made simulftaneously. e

A thirdeimportant object of the invention yis to provide .fan improved, machine Aof this kind ywherein -a web or strip is fed continuy'misil-y.through l'the machineand severed into sections, `each -:suitable to lform a dusterand wherein a bunching device,v acts intermittent- 2'5 eiectthe bunchingfopera-tion. e

.A-Jfourth fimportantob'ject o'f the -invention is to provide an improved machine .for

'this purpose having areciproc'ating huncher which *moves in one or forwardy direction `to f a-o effect the bunclringfof .a severed stripkan'd in the opposite orreturndirection to take posic tion for engaging 'and bunching a succeeding strip. y

.Arfiffth important object of the invention class wherein the securing ofthe strip Yin bunched relation -is ef'ected during rthe frev4turn movement ofthe buncher. Y y -A sixth important object ofthefi'n-vention `iis fto provide 'an improved machine ofthis characterwhe'rein the return movement v-of -advanceof the paper to form'the next bimch.

Aseventh important -object of the inven- `tion isto'provide -a Vnove'l fform of` paperrdust` ver capablelofbeing made bythis machine.

An eighth important object `"of the invention is -to provide A a novel @method of forming N such apaper duster. f p p f 'With thefaboveand y'other objectsfin view,

ysever-al views, and

at this end being shown `is to provide an improved vmachine `of this .Figure 5;

-duster the yinvention consists in general of fa mai A chine` having certain novel details of .construction and combinations'ofparts, a `novel constructionv of duster and a novelfmethod of manufacturing the same, all being hereinw55 after :fully described, illustrated in the 4aci companyng drawings and specifically claimed. Q, 'ce

In the accompanying drawings,.likeChaIfactersfof reference indicatelike partsi-n fthe Figure 1 is aside elevation ofa complete machine for lform-ing dusters and showingy what istermed the'right sideof the machine y Figure 2 is a similar View showingthe opfk5 posite or left side of the machine;

Figure 3 'is an elevational View from the left or front end of Figure 1, only the-parts f Figure Avisa view similar to Figurefbut vshowing the parts-at theopposite endjof the machine; f

lFigure y5 is a lplan vieu/of lthe vmachine i with thedevices for securingfthe bunchstrips in hunched condition being omittedtoavoid vconfusion lwith the other parts;

' Figure 'Gf-is a ysectionton the line '6---6 ,of

Figure 4;

e Figure 7 lis view similar tothe left portion yof Figure-6 but showing theA 'table Yago in dropped position Y Figure 8 is a. detail elevation lvof 1a .buncher and its operating means, the view being substantiallya section oni-.the `linel8f-,8 ofFigure 3 withparts'omitted; v f 85 Figure -9 is a lsection on the line 9-`9rof Figure `10 is` asectionon the'line 10P-'10 of Figuref2; y

y Figure 11 is an enlargedisectiononthe line -90 11-11 of Figure 4; fthe buncher :is effected-below the plane of F yigurey 12 isan enlarged section onflthe line 12-12of Figure 4; y n y Figure 13 isa diagrammatic perspective showing the steps in the manufactureofvthe 95 Figure Mis a sideelevation-of the complete duster.v f

' y In the embodiment ofthe machine as-hereinillustratedthere Vis providedV a ipair `of xoo spaced side frames 10 having feet 11 and these frames are held in proper spaced relation by front and rear tie bars 12 securely bolted to the feet. In the upper part of the rear end of each frame there is provided a series of four vertical slots 13. These slots open through the top of the frames and the slots in one frame are alined opposite the slots in the other frame. Bearings 14 are seated in the bottoms of the slots 13 and upper bearings 15 are mounted in these slots above the bearings 14. The bearings 15 are urged upwardly by springs 16 interposed between the tops of the bearings 13 and the bottoms of the bearings 15. Cap strips 17 are securely bolted to the frames to close the upper ends of the bearin g slots and adjusting screws 18 extend through these cap strips to engage the bearings 15. Loch nuts 19 are provided for these adjusting screws. Bv means of this arrangement the distances between the bearings 15 and 14'may be adjusted as desired.

In the extreme rear set of bearings is journalled a pair of shafts 2O which carry feed rollers 21 for feeding one or more (prefen ably four or six) plies of thin paper P through the machine. In the lower pair of bearings next forward of the rollers 21 is a shaft 22' on which is freely revoluble a bevel gear 23 having a huh 24. Keyed on the hub 24 is a gear 25 which meshes with a gear 26 fixed on a revoluble shaft 27. Fixed on the shaft 27 is a Second gear 28 which meshes with an idler gear 29 which revolves on a shaft 30 and meshes with a gear 31 fixed on the shaft 22 and thus drives the shaft 22.

Supported in the bearings above the shaft 22 is a shaft 33. In the next pair of slots toward the front of the machine the bear ings support shafts 34 and in the forward slots the bearings support shafts 35. On the left side of the machine the shafts for each slot are geared together by gears 36 and the lower gears 36 mesh with idlers 37, as shown in Figure 2, supported on shafts 38 so that the lower gears all revolve in the same direction 'as indicated by the arrows on said figure. 1 y

Secured to the right side member 10 is a bearing bracket 39 which supports a shaft 40 carrying on its upper end a bevel gear 41 which meshes with the bevel gear 23. The right hand foot 11 has a lateral extension 42 which supports alined bearings 43 where in is journalled a shaft 44 which is driven by any suitable means (not shown). On the lower end'of the shaft 40 is a bevel gear 45 wherewith meshes a bevel gear 46 carried bythe drive shaft 44. This forms the driving means for the gears 36.

On the shaft 33 is carried a roll 47, the middle portion of which is provided with spirally arranged cutters 48 so positioned as to cut closely spaced diagonal slits 49 in the middle portion of the paper strip P while leaving uncut marginal portions 50. On the shaft 22 is mounted a roll 51 constituting a platen against which the cutter blades 48 opcrate, this roll 51 being made of some suitable material which will not dull the sharp edges of the cutters 48 by contact therewith. On the upper shaft 34 is mounted a severing or dividing roll 52 having a central cutter blade 53 extending therearound and working on a platen roll 54 carried on the lower shaft 34. The blade 53 serves to divide the ribbon of paper P into longitudinally extending halves each of which includes one of the marginal portions and half of the slit portion, the dividing cut being shown at 55. rI` he upper shaft35 carries a roll 56 which has a single longitudinally extending cutter blade 57 running from end to Vend to extend entirely across the paper P and for a cut off blade to divide the paper into suitable lengths as at 58. This cutter 57 works on a platen roll 59 carried by the lower shaft 35.

By means of the apparatus which has now been described one or more plies of paper l) are fed by the rolls 21 to move forwardly under the slitting roll 47 where the slits for forming the wisps are cut, then under the dividing roll 52 and the cut off roll 56 to divide the slit paper into halves and cut it into lengths suitable for bunchng into proper sized dusters.

Journalled in the lower front parts of the frames 10 is a transverse shaft 6() carrying a bevel gear 61 which meshes with a bevel gear 62 on the drive shaft 44. On each end portion of the shaft 6() is mounted a gear 63 which meshes with a similar gear 64 fixed on a short shaft 65 journalled in a suitable bearing directly above the shaft 60. Thus the shafts 60 and 65 move into unison with the feeding and cutting mechanism previously described.

A table 66 is fitted between the front upper parts of the side frames 10 and is provided with depending legs 67 which work between guides 68 formed on the frames 10. At the top of each frame 10 is a pair of studs 69. A

lever 70 is pivoted intermediate its ends on the forward stud 69 on each side and has pin and slot connection at 71 with the table. A T-shaped lever 72 has its head pivoted intermediate its ends to the rear stud 69 and has pin and slot connection to the rear part of the table at 73. The levers 70 and 72 on each side of the table .have pin and slot connection at 74 so that rocking of a lever 72 will cause corresponding rocking of a lever 70 and thus both ends of the table will be raised simultaneously. Each lever 72 has a stem 75 which carries on its lower end a pin 76 working in the groove 77 of a cam 78 fixed on a rcspective shaft 65. The grooves 77 are so arranged as to hold the table raised during one part of the operation and hold it lowered during asecond part by rocking the stems, 7 5,

ila

thusfthe :levers 712, first inane direction andthen the other. f f At cachside of ktlfietal'ile isn setof gathering or bunching y,bars 79 VVwhich work in groovesfSO .and arewprovfided on their rear ends with `hooks 8l facingforward'ly tdward fixedgathering shocks 82 mounted ron lthe table. The trent cross bar "112 carrieslbearings183 `wherein is mounted a.rockshaf-t 84 carryingon one end airock arm 85. Theend ofathe arm 85 carries a pin861- which'.works in thegrooveof a vface cam V87 fixed` on the-:shaft 60. yThe bars `Z9l have depending .legs y84B through which passes` x1 rody 89 working i-n slots `formed in :theupper ends of rock arms 90,- fixed-on the shaft=84. The groove Aof the I cam-.87 is so shaped and thecamsf8-and87 are so positioned relative to leach other that thebars .'19 are `reciprocated' by `the` action of cam.. 87 in such .manner that `they move rrearwardly as thetable is, depressed andvforward# lyas `the table is raised. Bv-this vmeans each cutoffJlengthof 4paper is -fed over thev hooks 81 as they movefrearwardly and is .engaged byv these'hookson its forward movement to draw the cutoffglengths against `the stops 82 and thus :bunch 'the paper as shown at B-.in Figure 1'1. Two methods muv be adapted after the blanks are thus `hunched to rform the dusters- By vone method a suitable wrapping Lorr holding meansmaybeapp'liedby'hand tothemargrinalv portion ofvtheibunched blenkto hold it-f bunched: or, byanother method, themachi'ne maybe equipped* with. automatic'means for wrapping suchmarginal portion.l `:()ne `such automatic means willnow bedescribed.

0n eachsideof'thelmachine, near the-front, there is 'provided' a' bell crank consistingof arms91 and192-pivoted on a .stud 98 carried by =the frame member l0 on that side.. The

arm 91 yis provided lwith an angularly *disp-V posed elongatedhead194y whereinis journalled a shaft 95 provided' with a gear'ffby` which thcshaft is geared toa pair?01E-spacedL rolls97 suitablyv'supported fromy the' head1. Alsothe shaft195 carriesa gear 98 wherewith meshes `a segment 99pivoted at 10.0 tothe head, This head and the rolls carried thereby are so-pos'itioned that rockingof thebellcrankin one vdirection Will, at thev time the paper is hunched, ymove the. rol-is downto lie on opposite sidesof the hunched end. yA second b'ell crank has arms y1-'011 and;102-pivotallymounted on a stud-103 andthe arm 101'is connected tothe segment 995byya vlink 104'. The arms 92 and 102-carrylpins l105 which Work in :the groove of a cam 106. This cam is so arranged as to actuate first the 8111192 to eiect depression of the head androlls and then'to eifect opera-tion of -the arm 102 to cause rotation iin one direction and finally-to restore the parts to normalv position. Bythis ,means the Kbunch, has itsy unsevered' portion rolled -between the rollers so that adhesive tape 'E may wisps .5108.' f

There has thus been provided La vnovel method formkng-.paper clusters and arnovel machine for effectuallayncarryingfthe'production yof such dust-,ers into practice..

vIt is obviouspfthat'changes may befmadein l the @method and machinewithont departing ffromthe scope of theclaims. Itis vthereore toibe-gunderstoodthat theinvention includes all methods and mechanismswhich:properly fail within the seopecf the appended claims.

lwlavingthus described the invention, `what is claimed is:.-.- e

l1. The method of manufacturing dusters which includesvthe .production of closely ma' spaced. `slits, across the central v.portion of a web of material, the dividing of the Webflongitudinallyon its center line, :the cutting-'of f the dividedY web, intoy ,lengths to. `form blanks', and the bunching ofthe unslit portions 01:' said' blanksinto compactbundles.

2. The method .offmanufacturingqdusters which includes ,the production of closely spacedy slits. across 'Ytheecentrall pontion of a web .of sheet material', the vdividing of the weby longitudinally .onits center `line, thecutting of the dividedaweb ,into lengths to form blanks, the launching-of `the unslit portions of `said blanks .into compact fbundlesyand :the

.securing vofsaidz unslit portions in -hunched f condition.

:3; The methoduof manufacturing dusters which includes the production of closekv spaced slits, acrossfthe central portion` ogf a web of material, the dividing. of'thefwebflongitudinal-Ly onzit's centerline, fthe cutting of the 'bunching of ythe unsl-it yport-inns, .of said blanks. into compact bundles, land; the wrappingof the Vhunched andunslit :portions with adhesivctape. f

4. A machine? .for -inakifngfdusters includinga web feeding 1mechanism,a Yweb slitting mechanism arvangedfto lslit thecentnal p0r- ,tionf of the web -withclosely spacedfslits, a

web ,d ividing mechanism` arranged Lito; lcut'the slit. weh into halves 'longitudinazlly lQi the halves into blanks o'f equal. al'ength,`stops againstwhi'ch the forwardendsof the blanks engage, and reciprocating `bunch-ing hooks not lthe divided .web fintoy lengths toformblanks,

f Vio `halves into blanks of equal length, stops against which the forward ends of the blanks engage, reciprocating bunching hooks arranged to engage the rear edges of the blanks and bunch the blanks against said stops, and means to raise and lower said hooks and stops and arranged to raise the hooks and stops during movement of the hooks to bunch the blanks and to lower the hooks and stops during movement of the hooks away from the stops.

7. A machine for making dusters including a web feeding mechanism, a web slitting mechanism arranged to slit the central portion of the web with closely spaced slits, a web dividing mechanism arranged to cut the slit web into halves longitudinally of the web, a cut off mechanism for cutting said halves into blanks of equal length, stops against which the forward ends of the blanks engage, reciprocating bunching hooks arranged to engage the. rear edges of the blanks and bunch the blanks against said stops, and means to actuate said mechanisms and hooks in timed relation.

8. A machine for making paper dusters including a paper strip feeding mechanism, a paper web slitting mechanism arranged to slit the central portion of the web with close-V ly spaced slits, a web dividing mechanism arranged to cut the slit web into halves longitudinally of the web, a cut off mechanism for cutting said halves into blanks of equal length, stops against which the forward ends of the blanks engage, reciprocating bunching hooks arranged to engage the rear edges of the blanks and bunch the blanks against said stops, means to raise and lower said hooks and stops and arranged to raise the hooksand stops during movement of the hooks tobunch the blanks and to lower the hooks and stops during movement of the hooks away fromthe stops, and means to actuate said last means, the hooks and mechanisms in timed relation.

9. A machine for making paper clusters including a paper strip feeding mechanism, a pap-er web slitting mechanism arranged to slit the central portion of the web with close ly spaced slits, a web dividing mechanism arranged to cut the slit web into halves longitudinally of the web, a cut off mechanism for cutting said halves into blanks of equal length, a bunching mechanism for bunching the unsevered edges of the blanks, and a bunch wrapping device associated with the bunching mechanism to wrap the unslit portions of the blanks.

10. A machine for making paper dusters including a paper strip feeding mechanism, a paper web slitting mechanism arranged to slit the central portion of the web with closely spaced slits, a web dividing mechanism arranged to cut the slit web into halves longitudinally of the web, a cut off mechanism for cutting said halves into blanks of equal length, stops against which the forward ends of the blanks engage, reciprocating launching hooks arranged to engage the rear edges of the blanks and bunch the blanks against said stops, and a bunch wrapping device arranged to move into and out of operative relation to hunched blanks resting against said stops.

- 11. A machine for making paper clusters including a paper strip feeding mechanism, a paper web slitting mechanism arranged to slit the central portion of the web with closely spaced slits, a web dividing mechanism arranged to cut the slit web into halves longitudinally of the web, a cut ofi mechanism for cutting said halves into blanks of equal length, stops against which the forward ends of the blanks engage, reciprocating bunching hooks arranged to engage the rear edges of the blanks and bunch the blanks against said stops, means to raise and lower said hooks and stops and arranged to raise the hooks and stops during movement of the hooks to bunch the blanks and to lower the hooks and stops during movement of the hooks away from the stops, and a bunch Wrapping device arranged to move into operative relation to hunched blanks held against said stops in lowered position of the latter and to move out of operative relation thereto when the stops are in raised position.

12. A machine for making dusters includ ing a web feeding mechanism, a paper web slitting mechanism arranged to slit the ccntral portion of the web with closely spaced slits, a web dividing mechanism arranged to cut the slit web into halves longitudinally of the web, a out olf mechanism for cutting said halves into blanks of equal length, a bunching mechanism for bunching the unsevered edges of the blanks, a bunch wrapping device associated with the bunching mechanism to wrap the unslit portions of the blanks, and means to actuate said mechanism, hooks and wrapping device in timed relation.

19. A machine for making clusters including a web feeding mechanism, a web slitting mechanism arranged to slit the central portion of the web with closely spaced slits, a web dividing mechanism arranged to cut the slit web into halves longitudinally of the web, a cut off mechanism for cutting said halves into blanks of equal length, stops against which the forward ends of the blanks engage, reciprocating bunching hooks arranged to engage the rear edges of the blanks and bunch the blanks against said stops, a

bunch wrapping device arranged to move into p ping device in timed relation.

14. A machine for making dusters including a feeding mechanism, a web slitting mechanism arranged to slitthe central portion of the web with closely spaced slits, a web dividing mechanism arranged to cut the slit weby into halves longitudinally of the web, a cut off ymechanism for cutting said halves into blanks of `equal length, stops against'which the forward ends of the blanks engage, reciprocating bunching hooks arranged to engage the rear edges of the blanks and bunch the blanks against said stops, means to raise and lower said hooks and stops and arranged to raise the hooks and stops` during movement of the hooks to bunch the blanks and to lower the hooks and stops during movement of the hooks away from the stops, a bunch wrapping device arranged to move into operative relation to bunched blanks held against said stops in lowered po-y sition of the latter and to move out of operative relation thereto when the stops arein raised position, and meansto actuate the raising and lowering means, the hooks, said mechanisms and bunch wrapping device in timed relation.

15. In a machine for making dusters,*ea pair of web feeding rolls, cooperating web slitting and platen rolls including slitting blades on the central portion of the slitting roll, a web dividing roll having a blade extending centrally'therearound, a blank cutting off roll having a blade extending from end to end thereof, platen rolls for the dividing and cutting off rolls, and means to rotate said rolls in unison.

16. In a machine for making dusters, a pair kof web feeding rolls, cooperating web slitting and platen rolls including slitting blades on they central portion of the slitting roll, a web dividing roll having a-blade extending centrally therearound, a blank cutting off roll having a bladek extending from end to end thereof, platen rolls for the'dividing and cutting olf rolls, and means to rotate said rolls in unison, a table ontofwhich cut olf blanks are fed from the cutting off roll, stops on said table against which said blanks engage at their forward ends, hooks carried by the table and adapted to engagev the rear ends of the blanks and draw them toward the stops,-` and means to operate said hooks in unison with said rolls.

17. In ka machine for makingdustersfa pair of web feeding rolls, cooperating-web slitting and platen' rolls including' slittingY blades on the centraly portion of the slitting roll, a web dividing roll having a bladeextending centrally therearound, a blank cut` ting 0H roll having a blade extending from end to end thereof, platen rolls for the dividing and cutting off rolls, means to rotate said rolls in unison, a table onto whichy cut off blanksare fed from the cuttingy off roll, n stops on said table against which said blanks engage at their forward ends, hooks carried by the table and adapted to engage the rear ends of the blanks and draw them `toward the stops, means to operate said hooks in unison with said rolls, and means to hold Y the table raised as the hooks move toward the stops and to lower the table as the hooks move away from the stops. v i 18. In a machine for making dusters, a pair of web/feeding rolls, cooperating web slitting and platen rolls including slitting blades onthe central portion of the slitting roll, a web dividing roll having a blade extending centrally therearound, ablank cutting off roll having a blade lextending from end to end thereof, platen rolls for the dividing and cutting off rolls, means to rotate said rolls in unison, a table onto which cut olblanks are fed from the cuttingolf roll, stops on said table against which said blanks engage at'their forward ends, hooks carried by the table and adapted to engage the rear ends of the blanks and draw them toward the stops, means to operate said hooks in unison with saidrolls, a device to wrap the `hunched ends ofthe blanks, and operating j rfrom end to end thereof, platen rolls for the dividing and kcutting olf rolls, means to rotatesaid rolls in unison, a table onto which cut ofblanks are fedy from the cutting off roll, stops on said table against'which saidk blanks engage at their forward ends, hooks carried by the table and ladapted to engage the rear ends of the blanks and draw them towardthe stops, means to operate said hooks in unison with said rolls, means to hold the table raised as the hooks move toward the stops and to lower .the table as the hooks move away from the stops, a deviceto wrap the hunched ends of the blanks, and operating means for said device arranged to operate thesame in timedrelation tothe movements of said hooks. f

l In testimony whereof I affix my signature.

- RALPH YUTTS. 

